List of acronyms: D
This list contains acronyms, initialisms, and pseudo-blends that begin with the letter D.
For the purposes of this list:
- acronym = an abbreviation pronounced as if it were a word, e.g., SARS = severe acute respiratory syndrome, pronounced to rhyme with cars
- initialism = an abbreviation pronounced wholly or partly using the names of its constituent letters, e.g., CD = compact disc, pronounced cee dee
- pseudo-blend = an abbreviation whose extra or omitted letters mean that it cannot stand as a true acronym, initialism, or portmanteau (a word formed by combining two or more words).
- (a) = acronym, e.g.: SARS – (a) severe acute respiratory syndrome
- (i) = initialism, e.g.: CD – (i) compact disc
- (p) = pseudo-blend, e.g.: UNIFEM – (p) United Nations Development Fund for Women
- (s) = symbol (none of the above, representing and pronounced as something else; for example: MHz – megahertz)
Some terms are spoken as either acronym or initialism, e.g., VoIP, pronounced both as voyp and V-O-I-P.
DA
- da – (s) Danish language (ISO 639-1 code) – deca
- DA – (s) Denmark (FIPS 10-4 country code) – (i) Debtors Anonymous – (i) U.S. Department of the Army – District Attorney
- DAB – Digital Audio Broadcasting
- DACT – (i) Data Automated Communications Terminal – Dissimilar Air Combat Training
- DADVSI – (i) Loi sur le droit d’auteur et les droits voisins dans la société de l’information (French, "Law on copyrights and related rights in the information society")
- DAES – (i) Defence Acquisition Executive Summary – (UK MoD) Directorate of Analysis, Experimentation and Simulation
- DAF – (a) Dissolved Air Flotation, a technique used in water treatment
- DAFIF – (a) Digital Aeronautical Flight Information File
- DAK – (a) Disney's Animal Kingdom
- DA&M – (i) (U.S.) Director, Administration & Management
- dan – (s) Danish language (ISO 639-2 code)
- DAO – (i) Division Ammunition Officer
- DAQ – (p) Data acquisition – (i) Delivered Audio Quality
- DARE – (a) Drug Abuse Resistance Education
- DARO – (i/a) (U.S.) Defense Airborne Reconnaissance Office
- DARPA – (a) U.S. Defense Advanced Research Projects Agency
- DART – (a) Disaster Assistance Response Team – Dublin Area Rapid Transit
- DAS – (a) Defensive Aids Suite
- DASD – (i) (U.S.) Deputy Assistant Secretary of Defense
- DASL – (i) Datapoint's Advanced Systems Language
- DAU – (i) (U.S.) Defense Acquisition University
- DAWN – (a) (U.S.) Drug Abuse Warning Network
DB
- dB – (s) Decibel
- Db – (s) Dubnium
- DB – (i) Database – Deutsche Bahn
- d/b/a – (i) doing business as
- DBA – (i) De Bellis Antiquitatis (miniature wargaming rules)
- DBBL – (i) (U.S. Army Simulation Center) Dismounted Battlespace Battle Laboratory
- DBCS – (i) Double Byte Character Set
- DBDO – (i) Desert BDO
- DBE – (i) Dame Commander of the Order of the British Empire
- DBF – (i) Detection By Fire (weapon launch signature)
- DBM – (i) De Bellis Multitudinis (miniature wargaming rules) – Detection By Movement (military target)
- DBR – (i) De Bellis Renationis (miniature wargaming rules)
- DBRA – (i) Davis-Bacon Related Acts
- DBS – (i) Direct Broadcast Services (television)
- Disclosure and Barring Service (UK)
DC
- DC
- (i) da capo
- Italian Democrazia Cristiana
- Digital Compass
- Direct Current
- (s) District of Columbia (postal symbol)
- (i) Douglas Aircraft Company
- Dublin Core
- Duty Cycle
- Disconnected
- DCA
- (i) Defensive Counter Air
- Drum Corps Associates
- (p) DiChloroAcetate
- (s) Ronald Reagan Washington National Airport (IATA code)
- DCAA – (i) (U.S.) Defense Contract Audit Agency
- DCAS – (i) Devon and Cornwall Archery Society
- DCC
- (i) Dallas Christian College
- Digital Command Control (model railroading)
- Direct Client-to-Client (Internet Relay Chat)
- Dismounted Close Combat
- DCCP – (i) Datagram Congestion Control Protocol
- DCD – (i) [Organ] Donation after Cardiac Death
- DCDC – Development, Concepts and Doctrine Centre
- DCE – (i) Data Communication Equipment
- DCFC – (i) Death Cab for Cutie
- DCI
- (i) Detection, Classification and Identification
- Drum Corps International
- Duellists' Convocation International, now known simply by the initials
- DCIM – (p) Digital Camera Images
- DCIMS
- (i) Dental Classification Information Management System
- Dismounted Combat Identification Marking System
- DCL – Disney Cruise Line
- DCN – Deacon
- DCOM – Disney Channel Original Movie
- DCOP – (i) Desktop Communication Protocol
- DCSOPS – (p) Deputy Chief of Staff for Operations and plans
- DCW – (i) Digital Chart of the World
- DCYSC – (i) Discovery Channel Young Scientist Challenge
DD
- DD – many, including due diligence and dear daughter (increasingly prevalent on social mailing lists, blogs, and bulletin boards); see entry
- D&D
- (i) Dungeons and Dragons
- Diversion and Distress (Air Traffic Control)
- DDA
- DDD
- (i) Data Display Debugger
- Digital Digital Digital (CD mastering)
- DDL – (i) Digital Data Link
- DDN – (i) U.S. Defense Data Network
- DDoS – (i) Distributed Denial of Service
- DDP
- (i) Danish Design Prize
- Deutsche Demokratische Partei (German, "German Democratic Party" – former political party in Weimar Germany)
- Diamond Dallas Page (American professional wrestler)
- DDR
- (i) Dance Dance Revolution
- Deutsche Demokratische Republik (German, "German Democratic Republic" (GDR), East Germany)
- Double Data Rate
- (s) East Germany (ISO 3166 trigram, obsolete since 1990)
- DDR&E – (i) (U.S.) Defense Department Research and Engineering
- DDS – (i) Doctor of Dental Surgery
- DDT
- (i) Dichloro-Diphenyl-Trichloroethane (insecticide)
- Dynamic Debugging Tool (computing)
DE
- de – (s) German language (ISO 639-1 code)
- DE – (s) Delaware (postal symbol) – Germany (ISO 3166 digram)
- DEA – (i) Drug Enforcement Administration
- DEA – (i) Drug Enforcement Agency
- DEC – (a/i) Department of Environmental Conservation – Digital Equipment Corporation – Disasters Emergency Committee
- DeCA – (p) (U.S.) Defense Commissary Agency
- DECSIM – (p) Model DEComposition and SIMulation algorithm – Directed Energy Combat SIMulation
- DECT – (a) Digital European Cordless Telephone
- DEFCON – (p) Defence readiness condition
- DEFRA – (a) (UK) Department for Environment, Food and Rural Affairs
- DELT – (a) Dual Ended Line Test (ing)
- DEM – (i) Data Exchange Mechanism – Digital Elevation Model
- DEN – (s) Denmark (IOC and FIFA trigram, but not ISO 3166)
- DEPSECDEF – (p) (U.S.) Deputy Secretary of Defense
- DERA – (a) British Defence Evaluation and Research Agency (1995–2001)
- DES – (i) Deep Ecliptic Survey
- deu – (s) German language (ISO 639-2 code)
- DEU – (s) Germany (ISO 3166 trigram)
DF
- DF
- (i) Direct Fire
- Direction Finding
- Distrito Federal (Spanish and Portuguese for "federal district")
- DFAD – (p) Digital Feature Analysis Data ("dee-fad")
- DFAS – (i) (U.S.) Defense Finance and Accounting Service
- DFB – (i) Deutscher Fußball-Bund (German for "German Football Association")
- DFCB – (i) Data Format Control Book
- DfID – (i) UK Department for International Development
- DFL
- (i) Democratic–Farmer–Labor (the full designation of the Minnesota affiliate of the U.S. Democratic Party)
- Deutsche Fußball Liga (German for "German Football League"), the operator of the top two leagues of German football
- DFM – (i) Dynamic Flowgraph Methodology
- DFM – (ii) Discrete Field Model see Superluminal motion
- DFSP – (i) Dermatofibrosarcoma protuberans
- DfT– (i) Department for Transport
- DFTBA – (i) Don't Forget To Be Awesome- a term commonly used by the Vlogbrothers
DG
- DG – (i) Dei gratia (Latin, "by the grace of God") – Director-General – Data General
- DGA – (i) Direction générale des armées (French "Armed Forces General Directorate")
- DGAF – (I) Don't give a f***
- DGD&D – (i) UK Directorate General of Development and Doctrine
- DGPS – (i) Differential GPS
- DGZ – (i) Desired Ground Zero
DH
- DH – (i) dear husband (increasingly prevalent on social mailing lists, blogs, and bulletin boards) – Designated hitter
- DHA – (p) DocosaHexaenoic Acid
- DHHS – (i) (U.S.) Department of Health and Human Services
- DHL – (i) Dalsey, Hillblom, and Lynn (courier service)
- DHRA – (i) (U.S.) DoD Human Resources Activity
- DHS – (i) U.S. Department of Homeland Security
- DHSS – (i) UK Department of Health and Social Security
- DHTFYSS – (i) U.S. Don't Have Time For You Silly S****
- DHY – (s) Dahomey (ISO 3166 trigram; became BEN for Benin in 1977)
DI
- DIA – (i) U.S. Defense Intelligence Agency
- DIAC – (a) Department of Immigration and Citizenship (Australia) [1]
- DiC – Design Island Centre (computing usually used in a teaching situation)
- DICASS – (p) DIrectional Command Activated Sonobuoy System
- DID – (i) Dissociative identity disorder
- DILLIGAD – (a) Do I Look Like I Give A Damn? (military shorthand, slightly less offensive than the following) [2]
- DILLIGAF – (a) Do I Look Like I Give A Fuck? (military shorthand; the theme of biography, album, tour, and other products of Kevin Bloody Wilson) [3]
- DIF – (i) Data Interchange Format
- DIFAR – (p) DIrectional Frequency Analysis and Recording
- DIME – (a) Dense Inert Metal Explosive
- DIMM – (a) Dual In-line Memory Module (computing)
- DIN
- (i) Deutsches Institut für Normung (German, "German Institute for Standardization")
- Drug Identification Number (Canadian drug marketing requirement)
- DINA
- (p/a) Diesel Nacional (Spanish, "National Diesel"—Mexican bus and truck manufacturer now known as DINA)
- Dirección de Inteligencia Nacional (Spanish, "National Intelligence Directorate"—former secret police of Chile)
- DINKY – (a) Double Income, No Kids Yet
- DIP – (a) Dual In-line Package (electronics)
- DIPS – (a) Defense independent pitching statistics
- DIR – (i) Defence Industrial Research
- DIS
- DISA
- DISCOM – (p) Division Support Command
- DISE – (i) Deployable Intelligence Support Element
- DISSTAF – (a) DIS Search and Target Acquisition Fidelity experiment
- DITY – (i/a) Do-It-Yourself
- div – (s) Dhivehi language (ISO 639-2 code)
- DIVAD – (p) Division Air Defence
- DIY – (i) Do It Yourself
DJ
- DJ – (i) Disc Jockey – Dinner Jacket – (s) Djibouti (ISO 3166 digram; FIPS 10-4 country code)
- DJD – (i) Degenerative Joint Disease – Dublin Julian Day – Discoveries in the Judaean Desert
- DJF – (s) Djibouti franc (ISO 4217 currency code)
- DJI – (s) Djibouti (ISO 3166 trigram)
- DJS – (i) Director, Joint Staff
DK
- DK – (s) Denmark (ISO 3166 digram)
- DKK – (s) Danish krone (ISO 4217 currency code)
DL
- DL – Dexter's Laboratory
- DLA – (i) U.S. Defense Logistics Agency – (i) Dental Laboratories Association
- DLIC – (i) Detachment Left-In-Contact
- DLIR – (i) Depot-Level Inspection and Repair
- DLL – (i) Dynamic Link Library
- DLPFC or DL-PFC – (i) DorsoLateral PreFrontal Cortex
- DLPMC – (i) DorsoLateral PreMotor Cortex
- DLR – (i) Deutsches Zentrum für Luft- und Raumfahrt (German, German Aerospace Centre) – Docklands Light Railway
- DLRP – (i) Data Link Reference Point
- DLS – (i) Deep Lens Survey
- DLSA – (i) (U.S.) Defense Legal Services Agency
- DLSc – (p) Diploma in Library Science
- DLSC – (i) U.S. Defense Logistics Services Center – U.S. Defense Logistics Support Command – Department of Library Special Collections (Western Kentucky University Libraries) – Direct Loan Servicing Center – Directorate of Land Strategic Concepts (Canada) – Dominican Lay Scholars Community
- DLTBGYD – Don't let the bastards grind you down
DM
- DM
- (s) Dominica (ISO 3166 digram)
- (i) Dungeon Master (role-playing games)
- DMA
- (i) Designated market area (primarily a U.S. term)
- U.S. Defense Mapping Agency (became NIMA, then NGA)
- Direct Memory Access (computing)
- (s) Dominica (ISO 3166 trigram)
- DMC – (i) (U.S.) Defense Management Council
- DMCA – Digital Millennium Copyright Act
- DMD
- (i) dentariae medicinae doctor (Latin, "doctor of dental medicine")
- Digital Micromirror Device
- Digital Multilayer Disk
- DMI – (i) Desktop Management Interface (computing)
- DMM – Digital Multimeter
- DMOC – (i) Distributed Mission Operations Centre
- DMOS – (i/a) Double Diffused MOS transistor ("dee-moss")
- DMPA – (i) (U.S.) Defense Medical Programs Activity
- DMPFC – (i) DorsoMedial PreFrontal Cortex
- DMPK – (i) Drug Metabolism and Pharmacokinetics
- DMRB – (i) Design Manual for Roads and Bridges
- DMS – (i) U.S. Defense Message System
- DMSO
- (p) Dimethyl sulfoxide
- (i) U.S. Defense Modeling & Simulation Office ("dim-so"), now Modeling and Simulation Coordination Office
- DMSP – (i) U.S. Defense Meteorological Satellite Program
- DMT – (i) Dimethyltryptamine
- DMU – (i) Diesel Multiple Unit, a method of connecting self-propelled railway vehicles together to form a train under the control of one driver.
- DMV – (i) Department of Motor Vehicles
- DMZ – (i) DeMilitarized Zone
DN
- DN – (i) Deacon
- DNA
- (i) U.S. Defense Nuclear Agency
- Deoxyribonucleic acid
- Douglas Noël Adams
- DNAW – (i) Day Night All Weather
- DND – (i) Department of National Defence (Canada) – Do not disturb
- DNDi – (i) Drugs for Neglected Diseases initiative
- DNDO – (i) U.S. Domestic Nuclear Detection Office
- DNM – (i) Defence Nuclear Material
- DNK – (s) Denmark (ISO 3166 trigram)
- DNR – (i) Do not resuscitate
- DNS – (i) Domain name system
DO
- DO – (s) Dominica (FIPS 10-4 country code) – Dominican Republic (ISO 3166 digram) – (i) Doctor of Osteopathic Medicine
- DOA – (i) Dead On Arrival – Dead or Alive
- DOB – (i) Date Of Birth
- DoCRA – (a) Duty of Care Risk Analysis Standard
- DOD – (i) U.S. Department of Defense
- DODAF – (a) U.S. Department of Defense Architectural Framework
- DoDD – (i) U.S. Department of Defense Directive
- DoDEA – (i) (U.S.) Department of Defense Education Activity
- DOE – (i/a) U.S. Department of Energy
- DOHC – (i) Dual-OverHead-Cam engine
- DOI – (i) Digital Object Identifier – U.S. Department of the Interior
- DOM – (i) Deo optimo maximo (Latin, "to God, the best and greatest") – (a) Document Object Model – (s) Dominican Republic (ISO 3166 trigram)
- DOMS – (i) (U.S.) Director of Military Support
- DOP – (s) Dominican peso (ISO 4217 currency code)
- DORA – (a) Defence of the Realm Act
- DOS – (a) Denial of Service (DoS, cf. DDoS) – Density of State – Disk Operating System
- DOT – (i) Department of Transportation (U.S. federal or state) – Damage Over Time (common in World of Warcraft)
- DOTA – short-form for DEFENSE OF THE ANCIENTS a popular online epic game
- DotD – (i) Deal of the Day (marketing gimmick)
- DOTMLPF – (i) Doctrine, Organization, Training, Materiel, Leadership, Personnel, and Facilities (mnemonic)
- DOW – (i) Died of Wounds
DP
- DP – (i) Division de production (Algerian petroleum company)
- DP – (i) Decision Point – Dynamic Programming
- DPA – (i) UK Defence Procurement Agency
- DPCO – (i) Double-Pole Change Over
- DPDT – (i) Double-Pole Double-Throw
- DPICM – (i) Dual-Purpose Improved Conventional Munition
- DPKO – (p) UN Department for Peacekeeping Operations
- DPMO – (i) (U.S.) Defense Prisoner of War/Missing Personnel Office
- DPPDB – (p) Digital Point Positioning Database
- DPRE – (p) Displaced Person or Refugee (plural Displaced Persons and Refugees) (originally Displaced Persons, Refugees, Evacuees)
- DPRK – (i) Democratic People's Republic of Korea
- DPST – (i) Double-Pole Single-Throw
DQ
- DQ – (i) Dairy Queen – (s) Jarvis Island (FIPS 10-4 country code)
DR
- DR – (i) Dead Reckoning – (s) Dominican Republic (FIPS 10-4 country code) – (i) Danmarks Radio (Danish Broadcasting Corporation)
- DRA – (i) Defence Research Agency (UK, 1991–1995) – Democratic Republic of America
- DRAGN – (a) Double Radio source Active Galactic Nucleus ("dragon")
- DRAM – (a) Dynamic Random Access Memory ("dee-ram") (computing)
- DRC – (i) Democratic Republic of the Congo -- Domaine Romanee Conti
- DRDC – (i) Defence Research & Development Canada
- DREA – (i/a) Defence Research Establishment Atlantic (obsolete 2002)
- DRES – (i/a) Defence Research Establishment Suffield (obsolete 2002)
- DRET – (i/a) Defence Research Establishment Toronto (obsolete 2002)
- DREV – (i/a) Defence Research Establishment Valcartier (obsolete 2002)
- DRI – (i) Detection, Recognition, Identification – Dietary Reference Intake
- DRIC – (i/a) (U.S.) Defense Research Information Center
- DRL – (i) Daytime Running Lights – Dorman Roberts Ltd.
- DRM – (i) Digital Rights Management
- DRMS – (i) (U.S.) Defense Revitalization and Marketing Service
- DRPR – (p) Drawing Practices
- DRT – (i) Document Related Technologies
DS
- Ds – (s) Darmstadtium
- DS
- (i) Dear son (increasingly prevalent on social mailing lists, blogs, and bulletin boards)
- Defence Scientist
- Direct Support
- (s) Dust Storm (METAR Code)
- DSA
- (i) (U.S.) Defense Support Activities
- Division Support Area
- DSAA
- (i) (U.S.) Defense Security Assistance Agency
- Driving Schools Association of the Americas
- DECT Standard Authentication Algorithm
- DSAS – (i) Disney Sing Along Songs
- DSB – (i) (U.S.) Defense Science Board
- DSC
- (i) Differential Scanning Calorimeter
- Digital Selective Calling
- Digital Still Camera
- Distinguished Service Cross
- Doctor of Surgical Chiropody (obsolete)
- Document structure convention (PostScript programming)
- Dynamic Stability Control
- DSCS – (i) U.S. Defense Satellite Communications System
- DSCSOC – (i) DSCS Operations Center
- DSD – (i) Defence Studies Department (King's College, London)
- DSDS – (i) Deutschland sucht den Superstar (German, "Germany Seeks the Superstar"), the German version of the Idol series
- DSE – (i) Dry Sheep Equivalent
- DSG – (i) Direct-Shift Gearbox
- DSID – (i) Dismounted Soldier Identification System
- DSL – (i) Digital Subscriber Line
- DSLR – (i) Digital single-lens reflex (camera)
- DSM – (i) Diagnostic and Statistical Manual of Mental Disorders
- DSN – (i) Deep Space Network
- DSO – (i) Distinguished Service Order (British military decoration)
- dsp – (i) decessit sine prole (Latin, "died without issue") – genealogy short-hand
- dspl – (i) decessit sine prole legitima (Latin, "died without legitimate issue")
- dspm – (i) decessit sine prole mascula [superstite] (Latin, "died without surviving male issue" )
- dspml – (i) decessit sine prole mascula legitima (Latin, "died without legitimate male issue")
- dspms – (i) decessit sine prole mascula superstite (Latin, "died without surviving male issue")
- dsps – (i) Decessit sine prole superstite (Latin, "died without surviving issue")
- DSP
- (i) Defense Standardization Program
- Defense Support Program
- Digital Signal Processing
- DSPL – (i) Design Specialists and Plans Language
- DSR – (i) Deformed Special Relativity
- DSRV
- DSS
- (i) Digitized Sky Survey
- Discarding-Sabot Shell (ammunition)
- DST – (i) Daylight saving time
- DSTL – (i) British Defence Science and Technology Laboratory
- dsvp – d.s.v.p. decessit sine vitae patria (Latin, "died within fathers lifetime")
- DSWA – (i) (U.S.) Defense Special Weapons Agency
DT
- DTA – (i) Dental Technologists Association
- DTD – (i) Digital Terrain Data
- DTE – (i) Data Terminal Equipment – Down To Earth
- DTED – (p) Digital Terrain Elevation Data ("dee-ted")
- DTG – (i) Date-Time Group
- DTH – (i) Direct To Home (television)
- DTI – (i) UK Department of Trade and Industry
- DTIC – (i) (U.S.) Defense Technical Information Center
- DTL – (i) diode–transistor logicc (electronics)
- DTM
- (i) Deutsche Tourenwagen Masters (German, "German Touring Car Masters" – a current motor racing series)
- Deutsche Tourenwagen Meisterschaft (German, "German Touring Car Championship" – a defunct motor racing series)
- DTMF – (i) Dual-tone multi-frequency signaling
- DTLOMS – (i) Doctrine, Training, Leader development, Organization, Materiel, and Soldier (mnemonic)
- DTO – (i) Disruptive Technology Office (was ARDA)
- DTOMLS – (i) Doctrine, Training, Organization, Materiel, Leader and Soldier development (mnemonic)
- DTP - Desktop Tablet Press source
- DTR – (i) Determine The Relationship
- DTRA – (i) Defense Threat Reduction Agency ("deet-ra")
- DTSA – (i) (U.S.) Defense Technology Security Administration (ii) Defend Trade Secrets Act
DU
- DU
- (i) Depleted Uranium
- (s) Dust (METAR Code)
- DUI
- (i) Data Use Identifier
- Data Use Institute
- Davis Unified Ignition
- Diving Unlimited International
- Documento Único de Identidad
- Documento Unico de Importación
- Driving Under the Influence
- Duke University Improv
- DUMBO – (a) Down Under the Manhattan Bridge Overpass (Brooklyn neighborhood)
- DUSD – (i) (U.S.) Deputy Under-Secretary of Defense
DV
- dv – (s) Dhivehi language (ISO 639-1 code)
- DV
- (i) Daily Value (FDA food guide)
- Deo volente (Latin, "God willing")
- DVD – (i) Digital Versatile Disk (was Digital Video Disk)
- DVLC – (i) UK Driver and Vehicle Licensing Centre
- dvm – (i) decessit vita matris (Latin, "died in the lifetime of the mother")
- DVM – (i) Doctor of Veterinary Medicine
- DVO – (i) Direct View Optics
- DVOM – Digital Volt-Ohm Meter
- DVP – various meanings (disambiguation page)
- dvp – (i) decessit vita patris (Latin, "died in the lifetime of the father")
- dvu – (i) decessit vita uxoris (Latin, "died in the lifetime of spouse")
DW
- DW – (a) Drum Workshop
- DWG – (p) Divisional Wargame (military simulation)
- DWI – (i) Dance With Intensity – Danish West Indies – Diffusion-weighted imaging – Direct water injection – Disaster Welfare Inquiry – Drinking Water Inspectorate – Driving While Intoxicated/Impaired
- DWM – (a) Doctor Who Magazine
- DWIM – (a) Do What I Mean
- DWTS – (a) Dancing with the Stars
- DWW – (a) Down with Webster
DX
- DX
- (s) Dexterity (role-playing games)
- (p) DeXtrorphan
- Distant (radio)
- (i) D-Generation X (professional wrestling stable)
- DXA – (i) Dual-energy X-ray Absorptiometry
- DXM – (p) DeXtroMethorphan
DY
- Dy – (s) Dysprosium
- DY – (s) Dahomey (ISO 3166 digram; obsolete since 1977)
DZ
- dz – (s) Dzongkha language (ISO 639-1 code)
- DZ – (s) Algeria (ISO 3166 digram) – Drizzle (METAR Code) – (i) Drop Zone
- DZA – (s) Algeria (ISO 3166 trigram)
- DZD – (s) Algerian dinar (ISO 4217 currency code)
- dzo – (s) Dzongkha language (ISO 639-2 code)
- DZO (Depleted Zinc Oxide — physics/chemistry jargon)